Late May and early June Spokane Street Viaduct traffic impacts detailed

press release

The eastbound off-ramp at Fourth Avenue S has been closed since mid-April, when eastbound traffic was temporarily shifted onto the new viaduct structure in order to make room for repairs and repaving of the bridge deck on the old structure. It had previously been reported that the Fourth Avenue off-ramp would reopen next week (May 22 or 23), however, this has now been delayed. SDOT now expects the Fourth Avenue off-ramp to be open for the morning commute on Wednesday, May 30, at which point the eastbound off-ramp at First Avenue S will close. It is expected the First Avenue S off-ramp will then remain closed for about four weeks.

Looking ahead, all westbound lanes of the Spokane Street Viaduct from I-5 to SR 99 will be closed from 6 p.m. Saturday, June 9 until 5 a.m. Monday, June 11.

Other Upcoming Project Roadway Closures:

Monday, May 21 – Tuesday, May 22

· The westbound lanes of the Spokane Street Viaduct between I-5 and SR 99 will be closed nightly from 10 p.m. until 5 a.m. the following morning. The SR 99 southbound off-ramp to West Seattle will remain open, providing the opportunity to avoid the closure.

· Eastbound traffic on the Spokane Street Viaduct will be reduced to one lane nightly from
9 p.m. until 5 a.m. the following morning.

Monday, May 21 – Wednesday, May 23

· Southbound traffic on East Marginal Way S at S Spokane Street will be detoured to the west nightly from 9 p.m. until 5 a.m. the following morning.

Monday, May 21 – Friday, May 25

· The intersection of Sixth Avenue S & S Spokane Street will be restricted to one lane in each direction nightly, both for north/south and east/west traffic. On the nights of May 21, 22, 24, & 25, the southbound lane restrictions will run from 11 p.m. until 5 a.m. the following morning. On Wednesday, May 23, the southbound lane restriction will run from 10 p.m. until 5 a.m. Thursday morning. The northbound lane restriction will begin at 9 p.m. each night and end at 5 a.m. the following morning.

Thursday, May 24

· Fourth Avenue S at S Spokane Street will be reduced to one lane in each direction overnight from 9 p.m. until 5 a.m. Friday morning.
· Eastbound traffic on the Spokane Street Viaduct will be reduced to one lane overnight from
9 p.m. until 5 a.m. on Friday morning.

Thursday, May 24 – Friday, May 25

· Northbound traffic on East Marginal Way S at S Spokane Street will be detoured to the east frontage roadway under SR 99 nightly from 9 p.m. until 5 a.m. the following morning. Northbound traffic wishing to turn west at S Spokane Street will execute a U-turn at S Horton Street.

Friday, May 25

· First Avenue S at S Spokane Street will be reduced to one lane in each direction. The northbound restriction will run from 9 p.m. Friday until 5 a.m. Saturday. In order to accommodate Mariners fans leaving Safeco Field, the southbound lane restriction will not begin until 11 p.m. (and will continue until 5 a.m. Saturday morning).

Saturday, June 9 – Monday, June 11

· Westbound lanes of the Spokane Street Viaduct between I-5 and SR 99 will be closed from 6 p.m. Saturday, June 9 until 5 a.m. the morning of Monday, June 11. (The closure time is delayed until early evening on Saturday due to events at the stadiums in SODO earlier that day.)

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